<%@ page language="java" contentType="text/html; charset=GBK"
    pageEncoding="GBK"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GBK">
<title>msg</title>
<script type="text/javascript">
	function alertMsg(){
		var msg = document.getElementById("msg").value;
		alert(msg);
	}
</script>
</head>
<body onload="alertMsg()">
	<input type="hidden" name="msg" id="msg" value="${msg}"/>
</body>
</html>